We look at the division of 99434932 by 258 
Our goal is to divide 99434932 by 258.

On to step 1:
When dividing 9 by 258, we get 0 with a remainder of 9.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 9 leaves us with 9.
Include the next digit (9) from the dividend after 9, then repeat: 99 / 258

On to step 2:
If we divide 99 by 258, we get 0 and a remainder of 99.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 99 leaves us with 99.
Fetch the next digit (4) from the dividend, attach it to 99 and continue: 994 / 258

Let's proceed to step 3:
The number 258 fits into 994 3 times, leaving a remainder of 220.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
Deduct 774 from 994 and we're left with 220.
Include the next digit (3) from the dividend after 220, then repeat: 2203 / 258

Step 4:
The number 258 fits into 2203 8 times, leaving a remainder of 139.
Use 8 as the next digit of our solution. 
Result so far: 38.0
Subtract 2064 from 2203 to get 139.
Append the next digit (4) from the dividend to 139 and continue with: 1394 / 258

Step 5:
If we divide 1394 by 258, we get 5 and a remainder of 104.
Use 5 as the next digit of our solution. 
Result so far: 385.0
If we subtract 1290 from 1394, we get 104.
Take the next digit (9) from the dividend and append it to 104, then repeat: 1049 / 258

Advancing to step 6:
If we divide 1049 by 258, we get 4 and a remainder of 17.
The next digit of our result is 4. 
Result so far: 3854.0
If we take 1032 away from 1049, we end up with 17.
Grab the next digit (3) from the dividend, add it to 17, then carry on: 173 / 258

Going ahead to step 7:
The number 258 fits into 173 0 times, leaving a remainder of 173.
The next digit of our result is 0. 
Result so far: 38540.0
If we subtract 0 from 173, we get 173.
Grab the next digit (2) from the dividend, add it to 173, then carry on: 1732 / 258

On to step 8:
258 goes into 1732 6 times with a remainder of 184.
Record the quotient 6 as the next digit in the result. 
Result so far: 385406.0
Deduct 1548 from 1732 and we're left with 184.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1840, and continue the process.

Step 9:
The number 258 fits into 1840 7 times, leaving a remainder of 34.
Put 7 as the next digit of the answer. 
Result so far: 385406.7
If we take 1806 away from 1840, we end up with 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Going ahead to step 10:
The number 258 fits into 340 1 times, leaving a remainder of 82.
Write down 1 as next digit of the result. 
Result so far: 385406.71
Subtract 258 from 340 to get 82.
Since there are no more digits in the dividend, we add a zero to the remainder making it 820, and continue the process.

Step 11:
820 divided by 258 is 3 with a remainder of 46.
Put 3 as the next digit of the answer. 
Result so far: 385406.713
The remainder is 46 after subtracting 774 from 820.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Moving on to step 12:
The number 258 fits into 460 1 times, leaving a remainder of 202.
The next digit of our result is 1. 
Result so far: 385406.7131
Subtracting 258 from 460 leaves us with 202.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2020, and continue the process.

Going ahead to step 13:
258 can be fit into 2020 7 times, resulting in a remainder of 214.
Use 7 as the next digit of our solution. 
Result so far: 385406.71317
Subtracting 1806 from 2020 leaves us with 214.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2140, and continue the process.

Going ahead to step 14:
258 can be fit into 2140 8 times, resulting in a remainder of 76.
The number 8 becomes the next digit in our result. 
Result so far: 385406.713178
If we take 2064 away from 2140, we end up with 76.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

Going ahead to step 15:
When dividing 760 by 258, we get 2 with a remainder of 244.
Use 2 as the next digit of our solution. 
Result so far: 385406.7131782
Deduct 516 from 760 and we're left with 244.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2440, and continue the process.

Advancing to step 16:
The number 258 fits into 2440 9 times, leaving a remainder of 118.
The next digit of our result is 9. 
Result so far: 385406.71317829
The remainder is 118 after subtracting 2322 from 2440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1180, and continue the process.

Our division results in 385406.71317829 with a remaining 1.18e-07.